Lubricator.



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G. W. MANZEL.

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APPLICATION FILED MAY 10,1906.

Patented Sept. 12,1911.

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LUBRIGATOB. APPLIUATIION FILED MAY 10,1906.

Patented Sept. 12, 1911.

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LUBRIGAIOR.

APPLIOATION FILED MAY 10,1906.

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APPLICATION FILED MAY 10,1906.

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G. W. MANZEL. LUBRIGATOR.

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UNITED STATES PATENT OFFICE.

CHARLES W. MANZEL, 0F BUFFALO, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO J'. L. OSGOOD, OF BUFFALO, NEW YORK.

LUBRICATOR.

Specification of Letters Patent.

Patented Sept. 12, 1911.

Application filed May 10, 1906. Serial No. 316,096.

to force feed lubricators.

It has for its object to combine with the lubricator an efficient actuating mechanism which permits the same to be located at a greater or less distance from the actuating mechanism, thus especially adapting the improvement to automobiles where it is desirable to place the lubricator on the dashboard, in view of the operator, and the actuating mechanism of its pumps near the engine and to transmit motion from said mechanism to the pump plungers by intermediate means of simple and inexpensive construction.

In the accompanying drawings consisting of 7 sheets: Figure 1 is a vertical section of the lub-ricator taken longitudinally through one of its force pumps. Fig. 2 is a vertical longitudinal section in line 2--2, Fig. 1. Fig. 3 is a transverse vertical section in line 38, Fig. 1. Fig. 4 is a horizontal section in line z-4:, Fig. 1. Fig. 5 is a sectional front elevation of the primary cylinder and piston and the actuating mechanism of the latter. Fig. 6 is a vertical section of said mechanism in line 66, Fig. 5, showing the priming valve in the priming position. Fig. 7 is a vertical longitudinal section of said valve in its normal position. Fig. 8 is a transverse section thereof in line 8-8, Fig. 7. Fig. 9 is a similar section in line 99, Fig. 6. Fig. 10 is a fragmentary vertical longitudinal section of the lubricator, showing a modified construction of the means for admitting oil to the pipe or conduit between the primary and secondary cylinders in priming the same. Fig. 11 is a fragmentary vertical section of the primary cylinder showing the vent plug used in connection with the construction illustrated in Fig. 10.

Similar letters of reference indicate cor responding parts throughout the several views.

A indicates the body or reservoir of the lubricator which when used on an automobile may be mounted on the dashboard. It is preferably of rectangular form and provided with a removable front plate A In its top it has a filling openin closed by a screw plug 6 and provided witi a depending strainer B for intercepting any foreign substances in the oil.

In the lower portion of the reservoir are arranged a suitable number of force pumps 0, six being shown in the drawings; These pumps and the feed-regulating devices and the sight chamber combined therewith form no part of my present invention and may be of any suitable construction. In the construction shown in the drawings, each pump barrel is provided in its delivery passage with a pair of spring-pressed check valves (Z, al and the space between these valves is connected by an ascending pipe I) with the upper portion of a sight chamber E located at the top of the reservoir and having a transparent front wall, the upper end of the pipe D being bent downward to form a drip nozzle, as shown in Fig. 1. A suitable cut-off valve E is arranged between the upper sides of the pump barrels and the lower ends of the pipes D, so that upon opening this valve the oil is pumped through said pipes into the sight chamber, where the feed can be observed. After properly regulating the feed, the valve is again closed, when the oil will be pumped directly through the delivery pipes 7" leading to the parts to be lubricated. The oil delivered into the sight chamber flows back into the reservoir through openings in its bottom through which the pipes D pass, the openings being sufficiently larger than the pipes for this purpose.

G is a suitable gage glass arranged in the front wall of the reservoir A for showing the oil level in the. same.

The several pump plungers C are actuated by a vibrating frame or yoke I-I arranged in the oil reservoir. The arms of this frame are pivoted upon horizontal studs h secured in the side walls of the reservoir A, as shown in Fig. 8, and the frame is provided in its lower edge with notches k which receive flanged sleeves 7L secured to the rear ends of the plungers. The backward or return-stroke of the vibrating frame is effected by springs I. In the construction shown in the drawings, each of these springs is applied to a telescopic guide rod composed of a hollow section 2' carried by a screw plug 2' arranged in the front wall of the oil reservoir, and a stem 2' sliding in the hollow section and having a convex head 2' seated in a socket of the vibrating frame, the ends of the spring bearing against the plug and the head.

The forward stroke of the vibrating frame is efiected by a piston J operating in a hydraulic cylinder J preferably arranged horizontally in the lower portion of the 011 reservoir at one end of the series of force pumps C. As shown in Figs. 2, 3, and 4, the vibrating frame is connected with this piston by a link K pivoted at its rear end to the lower portion of said frame and at its opposite end to a pin 70 carried by the piston and passing laterally through a longitudinal slot 70 in the cylinder J Z, Fig. 2, indicates an inlet port or passage leading to the lower rear portion of the cylinder J and Z is a relief port arranged in its upper side beyond the lnlet end of the port Z and opening into the oil reservoir. This relief port is so arranged that it is uncovered by the piston J only during the final portion of its stroke, for the purpose hereinafter described. In its rear end said cylinder is provided with an oil return passage Z which opens into the oil reservoir and is controlled by a spring pressed check valve Z which opens toward the cylinder.

The forward or effective stroke of the piston J is produced by a hydraulic driving,

mechanism preferably'constructed as fol lows: Referring to Figs. 5 to 8, lncluslve,

M indicates whatmay be termed a primary or driving piston, as distinguished from the piston J which may be termed the secondary 'or driven piston. In practice, the piston M from the shaft N at a reduced speed by a worm 0 a gear wheel 0 and a gear pinion 0*". This worm'and worm wheel are preferably inclosed by an oil-tight casing 0 surmounting the cylinder M and having a removable filling cap 0 At its lower end the cylinder M is provided with a valve case P which communicates with the lower end thereof by an inlet port 79. The valve case is provided with an outlet port p which is connected with the inlet port Z of the secondary cylinder J by a pipe or 0011- duit g.

R is a priming valve, arranged in the case P and controlling the passage of the oil through the connecting pipe 9 and also permitting the escapeof the air therefrom in priming the apparatus. This valve preferably consists of a rotary plug or key having a main port r adapted to register with the inlet and outlet ports 7), p of the case P in the normal operation of the lubricator for connecting the primary cylinder M with the pipe 9, as shown in Figs. 7 and 8. The valve plug is also provided with a primary vent port 8 extending from one side of the main port 1" to the periphery of the plug and arranged to communicate with the inlet port p of the valve case when the plug is turned to the priming position shown in Figs. 6 and 9, in which position the main port 1" breaks register with said inlet port p. This primary vent port is controlled by a suitable check valve 8 which opens toward the primary cylinder M The valve plug also has a secondary vent port 8 leading from its front or outer end to its periphery and arranged to connect the inlet port 7) of the valve case with the outer atmosphere when the valve is turned to the priming position shown in Figs. 6 and 9. This secondary vent-port is controlled by a check valve 8 which opens outwardly or toward the large end of the plug.

In priming the apparatus, preparatory to operating the lubricator, the reservoir A and the crank case 0 are first filled with oil and the priming valve R is turned to the position shown in Figs. 6 and 9. Upon now start-ing the actuating mechanism of the primary piston M the first few strokes of the latter create a partial vacuum behind the check valve 8 of the primary vent port 8, opening said valve and exhausting the air from the pipe q through the outlet port 7) of the valve case. When the suction so produced becomes strong enough, it opens the automatic oil return valve Z allowing oil to flow from the reservoir A into the passage Z and through the pipe 9 and past the primary vent valve 8 into the valve-case P, and finally by the continued action of the primary piston M the air in front of the oil column in the pipe 9 is expelled through the secondary vent port 8 the check valve of which opens under the pressure produced by said piston and allows the air to escape. When oil escapes through this secondary vent port, it is an indication that the connecting pipe 9 between the primary cylinder M and the secondary cylinder J is filled by a solid column of oil, and the priming valve R is thereupon reversed to the position shown in Figs. 7 and 8, thus connecting the primary cylinder with the pipe 9 by the main port 1 of the valve. As soon as this condition is established, said oil column acts as a power transmitting medium between the primary piston and the secondary piston which imparts the forward stroke of the former to the latter, causing the secondary piston to move the vibrating frame H forwardly and effecting the active stroke of the several pump plungers. Upon the return stroke of the primary piston, the springs I react and swing the vibrating frame backwardly, thereby moving the pump plungers and the secondary piston J in the same direction and causing the column of oil in the passage Z and pipe 9 to follow the retreating primary piston, preparatory to being again forced forward by the next forward stroke thereof. In this manner the pump plungers are positively driven forward by the primary piston through the medium of the movable column of power-transmitting liquid, and in the opposite direction by the return springs I. This means of transmitting motion from the motor to the lubricator permits these parts to be placed in any desired location, either near to or remote from each other and regardless of any definite relative position, as the connecting pipe 9 may be straight or bent in different directions without affecting the action of the liquid column therein. This construction dispenses with geared shafts or other mechanical transmitting means between the motor and the lubricator, rendering the improvement especially suitable for automobiles, as it permits the lubricator and its actuating mechanism to be placed in the most convenient or desirable locations irrespective of the location or direction of the connecting oil conduit,.which latter, unlike shafts or similar transmissions, can be conveniently run to meet the varying requirements of different styles of automobiles.

In order to compensate for leakage of oil and wear of the parts and always maintain a solid column of oil between the primary and secondary pistons, the primary cylinder M is of larger capacity than the secondary cylinder, so that an excess of oil is delivered to the secondary cylinder. This excess or surplus oil is discharged into the oil reservoir through the relief port I of the secondary cylinder when the rear end of the corresponding piston uncovers said port, as hereinbefore described. During the last portion of the return stroke of the primary piston, as much oil as was expelled through said relief port returns into the passage Z through the return port Z thus restoring the complete and solid column of oil, the surplus oil being expelled from the secondary cylinder in this manner on every forward stroke of the primary piston and again drawn into said cylinder on the return stroke thereof. By this means, air is effectually excluded from the conduit 9 between the primary and secondary pistons and a regular and uniform feeding action of the lubricator pumps insured.

In order to always keep the oil level in the reservoir A above the top' of the secondary cylinder J and so exclude air from the same and the oil pipe 9, the force pumps C are provided with upwardly-extending inlet tubes t which rise to or slightly above the bottom of the gage glass G. As before stated, the crank case 0 is filled with oil during the operation of the lubricator. On the downward stroke of the primary piston M, some oil leaks past the same into the crank case and without some provision for the escape of such leakage, the crank case would be liable to breakage on the upward stroke of said piston. To prevent this, the primary piston is made hollow and provided within the crank case with a relief port or opening at which connects the interior of the case with the bore of the piston, the lower end of the bore opening into the valve case P. Below this relief port, the piston is provided in its bore or central passage with an upwardly closing check valve u which is held against its seat by a spring a By this construction, the oil is prevented from escaping upwardly past the check valve u on the downward stroke of the primary piston, while on its upward stroke any excess oil in the crank case escapes through the relief port a into the hollow piston and past said check valve, thus effectually guarding against breakage of the case. The spring a of this check valve is made stiff enough to keep the same closed in priming the apparatus, so as to prevent the vacuum pro duced by the primary piston from opening said valve and allowing the oil in the crank case to escape through the vent port 8 It will be observed that in this improved lubricator and hydraulic actuating mechanism, the movable parts are practically immersed in oil and therefore self-lubricating.

If desired, other suitable priming or venting means may be employed in place of the rotary priming valve R. For example, a vent plug V may be substituted for the same, as shown in Fig. 11. This plug is screwed into a socket or chamber W arranged at the lower end of the primary cylinder and separated therefrom by a diaphragm containing a passage w from which rises a stand pipe w This pipe forms an upward continuation of said passage and extends into the boreof the primary piston, being separated from the wall thereof by an intervening passage 102. The plug V has a conical upper end which normally closes the lower end of the passage w, which is reduced to leave an annular space 112* between it and the wall of the socket W. The plug has a longitudinal vent passage w extending upwardly from its lower end and thence laterally to the periphery of the plug so as to open into the space w When the plug is in the closed position shown in the drawings, oil is prevented from escaping through the pipe to and passageto, but upon p rtly unscrewing the plug, any air in the pipe 9 is allowed to escape through the pipe 40?, the passage w and the vent passage w of the plug.

When such a vent plug is employed, the secondary cylinder is preferably provided in its top with an oil inlet opening m, which is normally closed by a plug or valve x having a stem m which engages a screw threaded opening in the top of the oil rese'rvoir and is accessible from the exterior thereof.- To prime the apparatus, the valve m and the vent plug V are opened, when oil will flow by gravity into the secondary cylinder J and through the pipes 9, w and the passage of the vent plug, as above described, expelling the air therefrom.

I claim as my inventionz 1. In-a lubricator, the combination of a reservoir, a pump supplied therefrom, a.

primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting the primary and secondary cylinders, the primary cylinder having a greater capacity than the secondary cylinder and the latter being constructed to permit the escape of the surplus oil into the reservoir and its return into the secondary cylinder, and means for actuating the primary piston, substan-;

tially as set forth.

2. In a lubricator, the combination of a? reservoir, a pump supplied therefrom, a

primary cylinder and piston, a secondary cylinder and piston for actuating the pump- 1 plunger, a conduit connecting the primary and secondary cylinders, the primary cyl-Z inder having a greater capacity than the secondary cylinder and the latter having a 1 relief port and a return port communicating with the reservoir, and means for actuatingsaid primary piston, substantially as v set forth..

3. In a lubricator, thecombination of a; reservoir, a pump supplied therefrom, a:

primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting the primary and secondary cylinders, the primary cylinder having a greater capacity than the secondary cylinder and the latter havingv a relief port controlled by the secondary 6. In a lubricator, the combination of a I reservoir, a pump supplied therefrom, a vibrating frame arranged in the reservoir and connected with the pump-plunger, a

spring for moving said frame in one direction, a primary cylinder and piston, a secondary cylinder and piston arranged in the reservolr for moving sald frame in the opposite direction, and a condult connectlng the primary and secondary cylinders, substantially as set forth.

7. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting said primary and secondary cylinders and adapted to contain a power-transmitting liquid-column, and venting or priming means applied to said conduit, substantially as set forth.

8. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting said primary and secondary cylinders and adapted to contain a power-transmitting liquid-column, and a priming valve arranged in said conduit, substantially as set forth.

9. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pump-plunger, a conduit connecting the arimary and secondary cylinders, and a priming valve arranged in said conduit and comprising a case having inlet and outlet ports, and a key or plug having a main port adapted to register normally with said inletand outlet ports and a ventport arranged to communicate with said outlet port when the key is turned to its priming position, substantially as set forth.

10. In a lubricator, the combination of a reservoir, a .pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting the primary and secondary cylinders, and. a priming valve arranged in said conduit and comprising a case having inlet and outlet ports and a key or plug having a main port adapted to register normally With said inlet and outlet ports, and a vent port connecting said case with the outer atmosphere when the key is turned to its priming posi tion, and a check valve controlling said vent port, substantially as set forth.

11. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting the primary and secondary cylinders, and a priming valve arranged in said conduit and comprising a case having inlet and outlet ports and a key or plug having a main port adapted to register normally With said inlet and outlet ports, a vent port connecting said case With the outer atmosphere when the key is turned to its priming position, a second vent port arranged to connect said main port With the valve case in the priming position of the key, and check valves controlling said vent-ports, substantially as set forth.

12. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting said primary and secondary cylinders, actuating means for said primary piston, and a tight casing inclosing said actuating means, said primary piston having a relief passage connected With said casing, substantially as set forth.

13. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting said primary and secondary cylinders, actuating means for said primary piston, a tight casing inclosing said actuating means, said primary piston having a relief passage connected With said casing, and a check valve controlling said passage and closing toward said casing, substantially as set forth.

14E. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a primary cylinder and piston, a secondary cylinder and piston for actuating the pumpplunger, a conduit connecting said primary and secondary cylinders, actuating means for said primary piston, a tight casing inclosing said actuating means, said primary piston having a longitudinal relief passage connecting at one end With said casing and at its other end With said conduit, and a check valve controlling said passage and closing toward said casing, substantially as set forth.

Witness my hand this 7th day of May,

CHARLES W. MANZEL. Witnesses C. F. GE ER, E. M. GRAHAM.

Copies of this patent may be obtained for fun: cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

